Leakproof atomizer



March 7, 1939, F. w. LOHSE l2,149,611

LEAKPROOF ATOMI ZER iled Jan. 9, I1957 Patented Mar. 7, 1939 UNITED STATES PATENT GFFE 8 Claims.

This invention relates to liquid atomizers and is intended to provide a simple and thoroughly reliable leak proof construction` by which the air venting and liquid discharge passages are 45 rendered instantly available for atomizing serv- '15 charge passages leading to a common atomizing chamber, the liquid discharge passage being located in the slide to move into registry with a liquid exhaust passage formed in the stopper, which liquid exhaust passage is securely sealed against leakage when the slide is shifted to inactive position. In like fashion registering air passages, formed respectively in the slide and in the stopper, provide the necessary air venting of Vthe bottle when atomizing, while sealing the stopper against escape of liquid through the air vent when the slide is shifted to inactive or seallng position'. The provision of thoroughly reliable means of preventing leakage when the slide is shifted to sealing position also forms a feature of this invention.

In the accompanying drawing is illustrated one form of embodying the principles of this invention, in which Fig. l is a side elevation of the complete atom- Y izer and liquid container showing the upper portion of the stopper and of the sealing and atomizing slide in vertical central section.

. Fig. 2 is a View in cross section of the stopper and sealing slide taken along the line 2-2 of Fig. 1.

In the practice of the invention, in the form illustrated, there is provided any suitable type of bottle or liquid container I and a stopper member 2 which may be attached to the bottle in any well known manner, such for example, as a threaded connection. The upper portion of this stopper is formed as .a tubular slideway. In this case, though not necessarily, the slide passageway is of rectangular shape. The stopper is also provided with a liquid exhaust passagehaving a depending exhaust tube I!) to supply liquid to the vliquid discharge passage formed in the slide member 4. v

The slide member 4 has a longitudinal bore 1 in (c1. 29e-ss) which is fastened the compressed air tube 6 of yan air compressing bulb, whose delivery end Ais reduced at 6a to form an annular passageway for the discharge of liquid through the atomizing chamber at la. y

Theslide member is provided with a vertical bore or passage ib forming a continuation of the liquid exhaust passage 28L when the two passages are in registry with each other, as shown in Fig. 2, so that the exhaust created by the ow of air through the atomizing chamber will act to draw liquid into the surrounding annular passage through said communicating ducts for aspiration and delivery through the atomizing chamber 1a- The upper face of the slide is recessed intermediate of its ends to receive a bow-spring 8, whose opposite thrust is received respectively by the top wall of the tubular slideway 3 and by the bottom of the recessed portion of the slide member 4. A longer recess is formed on the bottom portion of the slide member and in it is inserted a strip of packing material 9, which is slightly compressible and is slightly thinner than the depth of the recess so as to leave stop lips il at either end of the slide, which will hold the packing in place and yet will form stop shoulders for engagement with the bottom wall of the tubular slideway to limit the to and fro sliding movements of the slide member ll. The spring 8 serves to v press the packing strip 9 tightly against the inside face of the bottom wall of the tubular slideway so that when the slide is retracted or shifted to inactive position the liquid discharge passage 23L is securely and tightly sealed against leakage. -35

Alongside the vertical liquid exhaust passages are located air venting passages l 2 and i3 formed. respectively, in the body of the slide .and in the body of the stopper. Thesev air Venting passages are arranged to be in alignment when the slide is pushed to active position and to be out of alignment when the slide is shifted to sealing position. It will of course be understood that the packing strip 9 is provided with perforations 5 registering with the respective liquid discharge '4 and air venting passages above described.

It will be noticed that but one hand is needed for squeezing the air compressing bulb I5 and shifting the slide from active to inactive position. There is no manipulation of screws or sealing caps While the spring acts not only to keep the packing firmly pressed against possi-ble leakage from the stopper openings when the slide is movedtoinactive position, but acts as a friction to retain the slide in whatever position of adjustment it may be-placed. The friction, however, is so light that merely pushing in or pulling out on the air bulb is suicient to shift it to desired position. The slide may be Withdrawn from its tubular casing or slideway by pressing it up against the tension of the spring so that its stop lips l l can pass through the slide.

What I claim is: l

1. In a liquid atomizer, the combinationof a bottle stopper provided with a tubular slideway and having a liquidv exhaust conduit aiording communication between the liquid in thebottle and a port opening into said slideway, an atomizing and bottle sealing slide member mounted in said slideway and having compressed air and liquid discharge passages leading to a common atomizing and discharge chamber, said liquid discharge passage having its intake end located for movement into registry with said port in the stopper by the sliding movement of the slide from sealing position, said slide and said stopper being also provided with airfventing passages that are brought into register by the same movement oi the slide, the slide member having an external cross-sectional shape and size suitable for assembly in and withdrawal from the slideway by movement ina longitudinal direction, and means normally limiting the amount of longitudinal movement of the slide member in the slideway.

2. In a liquid atomizer, the combination of a bottle stopper provided with a tubular slideway and having a liquid exhaust conduit affording communication between the liquid in the bottle and a port opening into said slideway, an atomizing and bottle sealing slide member mounted in said slideway and having compressed air and liquid discharge passages leading to a common atomizing and discharge chamber, said liquid discharge passage having its intake end located for movement into registry with said port in the stopper by the sliding movement of the slide from sealing position, said slide and said stop-per being aiso provided with `air venting passages that are brought into register by the same movement oi the slide, the slide member having an external cross-sectional shape and size suitable for assembly in and withdrawal from the slideway by movement in a longitudinal direction, there being shouldersv on the ends of the slide member adapted to engage the ends of the slideway to normally limit the amount of longitudinal movement of the slide member.

3. In a liquid atomizer, the combination of a bottle stopper provided with a tubular slideway and having a liquid exhaust conduit aiTording communication between the liquid in the bottle and a port opening into said slideway, an atomizing and bottle sealing slide member mounted in said slideway and having compressed air and liquid discharge passages leading to a common atomizing and discharge chamber, vsaid liquid discharge passage having its intake end located for movement into registry with said port in the stopper by the sliding movement of the slide from sealing position, said slide and said stopper being also provided with air venting passages that Iare brought into register by the same movement of the slide, the slide member Ahaving an external cross-sectional shape and sizve suitableV for assembly in and withdrawal from the slideway by movement in a longitudinal direction, there being shoulders on the ends of the slide member adapted to engage the ends of the slideway to normally limit the amount of longitudinal movement of the slide member, and resilient means interposed between the slide member and slideway on the opposite side thereof from the shoulders.

4. In a liquid atomizer, the combination of a bottle stopper provided with a tubular slideway and having a liquid exhaust conduit aiTording communication between the liquid in the bottle and a port opening into said slideway, an atomizi'ng and bottle sealing slide member mounted in said slideway and having compressed air and liquid discharge passages leading to a common atomizing and discharge chamber, said liquid discharge passage having its intake end located for movement into registry with said port in the stopper by the sliding movement of the slide from sealing position, said slide and said stopper being also provided with air venting passages that are brought into register by the same movement of the slide, the slide being recessed on two of its opposite sides, one of the recesses forming a bearing surface Vfor engagement with the slideway and shoulders to limit the movement of the slide member in the slideway, and resilient means in the other recesses for releasably forcing the bearing surface' into engagement with the slideway.

5. In a liquid atomizer, the 4combination of a bottle stopper provided with' a tubular slideway and having a liquid exhaust conduit aording communication between the liquid inthe bottle and a port opening into said slideway, an atomizing and `bottle sealing slide member mounted in said slideway and having compressed air and liquid discharge passages leading to a common atomizing and discharge chamber, said liquid discharge passage having its intake end located for movement into registry with said port in the stopper by the sliding movement of the slide from sealing position,'said slide and said stopper being also provided with air venting passages that are brought into register by the same movement of the slide, the slide being recessed on two of its opposite sides, one of the recesses forming a bearing surface for engagement with-the slideway, and shoulders to limit the movement'of the slide member in the slideway, a strip of packing material in said recess extending between the shoulders, and resilient means in VVthe other recesses for releasably forcing the bearing surface intoV engagement with the slideway.

6. In a liquid atomizer, the combination of a bottle stopper provided with a tubular slideway and having a liquid exhaust conduit affording communication between the liquid in the bottle and aport opening into said slideway, an atomizing and bottle sealing slide member mounted in said slideway and having compressed air and 'liquid discharge passages leading to a common atomizing and discharge chamber, said liquid dischargepassage having its intake end located for movement into Aregistry with said port in the Vstopper by the sliding movement of the slide from sealingposition, said slide and said stopper bei'ngfalso' providedwith air venting passages that are'brought into register by the same movement of thev slide, a perforated strip of packing material securedto the intake side of the slide with itsper'forations in register vwith the ends of the airyenting and liquid discharge passages in the slide.

7. In a liquid atomizer, the combination of a and a port opening into said slideway, an atomizing and bottle sealing slide member mounted in said slideway and having compressed air and liquid discharge passages leading to a common atomizing and discharge chamber, said liquid discharge passage having its intake end located for movement into registry with said port in the vstopper by the sliding movement of the slide from of a'bottle stopper member and -a slidable atomizing and sealing member, each member having bottle venting and liquid passages which are offset when the slide is in sealing position and which are in registry when the slide is moved to ato'miZing position,said slide being provided with a compressed air passage leading to an atomizing and discharge chamber to which the liquid is conducted, and means for preventing leakage of th l'quid from the bottle when the slideis moved lling position, said means including a perfo d packing strip interposed between'v the sli el and the stopper member, and a spring for pr ss'ng the packing rmly against the outlet endsof the liquid and air venting passages of the 15 stopper.

Y lF'EIE'I'JERICK W. LOI-ISE. 

